Thermal valve



FIG. 1 illustrates a perspective view of a thermal valve;

FIG. 2 illustrates a top view of a thermal valve illustrated in FIG. 1;

FIG. 3 illustrates a bottom view of a thermal valve illustrated in FIG. 1;

FIG. 4 illustrates a front view of a thermal valve illustrated in FIG. 1;

FIG. 5 illustrates a back view of a thermal valve illustrated in FIG. 1;

FIG. 6 illustrates a left side view of a thermal valve illustrated in FIG. 1; and,

FIG. 7 illustrates a right side view of the termal valve illustrated in FIG. 1. 

The ornamental design for a thermal valve, or similar article as described and shown in FIGS. 1 through 7, inclusive. 